I built this in a similar way to the ones I built for my 4x4. It pulls 240W from the wall @ 100% power and runs nice and cool. I made it 22” x 22” so it will fit in his 2.5’ x 2.5’ tent and it will be more than enough power. It’s driven by a Mean Well XLG-240-H-AB that will be outside of the tent. I made it powerful enough so, if he upgrades to a 4’ x 4’ tent, I can just make him one more and he’ll be golden.